下列关于添加辅食原则的说法中，不正确的是（）

A.由少到多

B.由稀到稠

C.由稠到稀

D.由细到粗

E.品种渐增

—Do your friends like music?            

—Yes, one of my friends listens to _____music. He thinks it makes him comfortable.             [ ]

A. class      

B. classmate    

C. classical  

D. classroom